Shape descriptor syntax
You can add a shape object to a complex linetype using the following syntax:
[shape_name, shape_filename] or [shape_name, shape_filename, transform]
The definitions of the fields in the syntax are as follows.
shape_name The name of the
shape to add to the linetype. The shape name must exist in the
specified shape file (shape_filename).
shape_filename The name of a
compiled shape definition file (extension *.shx). If no path is
defined for the shape filename, the library path is searched for the file.
transform The transform
argument is optional and can be any series of the following (each
preceded by a comma):
R=value Relative rotation
A=value Absolute rotation
X=value X offset
Y=value Y offset
In this syntax, value represents a signed decimal number. The
rotation is expressed in degrees while the other options are in
linetype scaled drawing units.
rotation R=value or A=value.
R= determines a relative or tangential rotation with respect to the
A= determines an absolute rotation of the shape with respect to the
origin. All shapes have the same rotation regardless of their
relative position to the line. The value can be appended with a d for
degrees (default), r for radians, or g for grads. If rotation is
omitted, 0 relative rotation is used.
Determines a factor by which the shape's internal scale is
multiplied. If the shape's internal scale is 0, the scale value is
used as the scale.
X offset X=value.
Determines a shift of the shape along the X axis of the linetype
computed from the end of the linetype definition vertex. If X offset
is omitted or is 0, the shape is elaborated with no offset. Include
this field if you want a continuous line with shapes. This value is
not scaled by the scale factor defined by S.
Y offset Y=value.
Determines a shift of the shape along the Y axis of the linetype
computed from the end of the linetype definition vertex. If Y offset
is omitted or 0, the shape is elaborated with no offset. This value
is not scaled by the scale factor defined by S.
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Text descriptor syntax